Concuerdo con la traducción de littlegringa, pero de la oración original en inglés no es buena. Debe ser:
You have to be unapologetic to her and confident for this to work.
I think the original sentence is fine, and has a different meaning than this one. It may be the case that 'unapologetically' doesn't exist in the dictionary, but I do use it. It means 'unabashedly' or 'without any shame or reservations'. In that way, to be 'unapologetically into her' (to show her love without shame or reservations) is different than to be 'unapologetic to her'.
